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If an unknown substance cannot be broken down into simpler substances it is made of one kind of atom and an element.
Elements cannot be changed into simpler substances by chemical means. To change them into simpler particles, you need nuclear means.
There are two types of substances: elements and compunds. Elements cannot be separated into simpler substances while compunds can. Take for example iron, pure iron is made of iron atoms, and they can't be divided into simpler substances, as such, iron is an element. On the other hand, salt is a substance that CAN be separated into sodium and chloride, so salt is a compound (and since sodium and chloride can't be furtherly separated they are elements). So, an element IS a substance, but not all substances are elements.
Not: atoms The answer is an element
An element is a pure substance that cannot be separated into simpler substances by physical or chemical means. Atoms are the smallest particles in which an element can be divided and still retain its properties.
An element cannot be separated into simpler substances by chemical means.
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Elements
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Any substance that cannot be broken down into simpler substances is an?
Help me please I need a answer and fast
If an unknown substance cannot be broken down into simpler substances it is made of one kind of atom and an element.
Elements cannot be changed into simpler substances by chemical means. To change them into simpler particles, you need nuclear means.
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Its Elements
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